* {
    padding: 0;
    margin: 0;
}

.main-box {
    box-sizing: border-box;
    margin-top: 32px;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: -webkit-linear-gradient(top, rgb(240, 125, 125) 0%, rgb(225, 237, 195) 100%)
}

.row::before {
    content: "";
    display: table
}

.row::after {
    content: "";
    display: table;
    clear: both;
}

.top-box {
    height: 32px;
    border-bottom: 1px solid #ebebeb;
    display: flex;
    flex-direction: row;
    justify-content: flex-end;
    align-items: center;
    box-sizing: border-box;
 
    position: relative;
    z-index: 100;
}

.top-nav {
    width: 590px;
    font-size: 0;
    display: flex;
    flex-flow: row;
    justify-content: flex-end;
}

.top-nav>span {
    margin-left: 19px;
    font-size: 13px;
    display: block;
    line-height: 32px;
}

.ftn-bk {
    font-weight: 700;

}

.top-nav>span:not(:last-of-type) {
    text-decoration: underline;
}

.top-nav span:hover {
    cursor: pointer;
}

.user-menu {
    position: relative;
}

.user-down {
    box-sizing: border-box;
    font-size: 12px;
    position: absolute;
    width: 68px;
    display: none;
    flex-direction: column;
    align-items: center;
    box-shadow: 1px 1px 5px #d1d1d1;
    border: 1px solid #E3E3E3;
    background: white;
    transform: translate(-20px, 0px);

}

.user-down::after {
    content: "";
    display: block;
    width: 0;
    height: 0;
    position: absolute;
    border: 5px solid transparent;
    border-bottom: 5px solid #fff;
    transform: translate(0px, -10px);
}

.user-down::before {
    content: "";
    display: block;
    width: 0;
    height: 0;
    position: absolute;
    border: 6px solid transparent;
    border-bottom: 6px solid #E3E3E3;
    transform: translate(0px, -12px);
}

.user-down>span {
    width: 100%;
    display: block;
    line-height: 25px;
    color: #000;
    text-align: center;
    padding: 0 0 0 3px;
}

.user-menu:hover .user-down {
    display: flex;

}

.user-down>span:hover {
    background: #3388ff;
}
.set-menu{
    position: relative;
}
/* set下拉 */
.set-down {
    box-sizing: border-box;
    font-size: 12px;
    position: absolute;
    width: 68px;
    display: none;
    flex-direction: column;
    align-items: center;
    box-shadow: 1px 1px 5px #d1d1d1;
    border: 1px solid #E3E3E3;
    background: white;
    transform: translate(-20px, 0px);
 
}

.set-down::after {
    content: "";
    display: block;
    width: 0;
    height: 0;
    position: absolute;
    border: 5px solid transparent;
    border-bottom: 5px solid #fff;
    transform: translate(0px, -10px);
}

.set-down::before {
    content: "";
    display: block;
    width: 0;
    height: 0;
    position: absolute;
    border: 6px solid transparent;
    border-bottom: 6px solid #E3E3E3;
    transform: translate(0px, -12px);
}

.set-down>span {
    width: 100%;
    display: block;
    line-height: 25px;
    color: #000;
    text-align: center;
    padding: 0 0 0 3px;
}

.set-menu:hover .set-down {
    display: flex;

}

.set-down>span:hover {
    background: #3388ff;
}
/* 更多产品 */
.about-menu{
    position: relative;
    display: block;
    background: #3388ff;
    color: white;
    width: 86px;
    text-align: center;
    border: 1px solid transparent;
    box-sizing: border-box;
}
.about-down{
    border-left: 1px solid #e7e7e7;
    background-color: rgb(249, 249, 249);
    position: absolute;
    display: none;
    width:86px;
    flex-direction: column;
    align-items: center;
    box-sizing: border-box;
}
.item-box{
    width:66px;
    height: 77px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
    border-bottom: #f0f0f0 1px solid;
}
.item-box>img{
    height: 36px;
    width: auto;
    margin: 10px auto 5px;
    cursor: pointer;
}
.item-box>span{
    font-size: 12px;
    color: #666666;
    line-height: 14px;
}
.item-box:hover>span{
    text-decoration: underline
}
.about-menu:hover{
    background: rgb(249, 249, 249);
    color: #333333;
    border-left: 1px solid #e7e7e7;
    box-sizing: border-box;
}
.about-menu:hover .about-down{
    display: flex;
}
/* 图片界面 */
.pic-box {
    width: 600px;
    height: 400px;
    box-sizing: border-box;
    margin: 100px auto 0;
    position: relative;
}

.pic-box>img {
    position: absolute;
}


.prev,
.next {
    background: url('../images/icon-slides.png') no-repeat;
    width: 40px;
    height: 70px;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    border: none;
}

.content-box {
    width: 600px;
    box-sizing: border-box;
    margin: 0 auto;
    position: relative;
}

.prev {
    left: 0;
    background-position-x:-85px; 
}
.prev:hover{
    background-position-x:0px; 
}
.next {
    right: 0;
    background-position-x:-125px; 
}
.next:hover{
    background-position-x:-43px; 
}
.icons-box{
    position: absolute;
    width: 100px;
    left: 50%;
    transform: translateX(-50%);
    bottom:10px;
    z-index: 101;
    display: flex;
    flex-direction: row;
    justify-content: space-evenly;
}
.icons-box>span{
    width: 15px;
    height: 15px;
    /* background: #ededed; */
    border: 1px solid #757373;
    border-radius: 50%;
    box-sizing: border-box;
}
.current{
    background-color: orangered;
}